in the last year, he put all of his time and energy into restoring this world war ii tugboat, the eugene h. the elderly mattingly stayed late last night to work on it. >> last night, for some reason, he didn't want to leave yet. >> reporter: that was around 5:30 p.m. this morning, mattingly'sson found the doors to the tugboat open, and the coffee pot cold. two things his father wouldn't have done. >> he's definitely determine. in an abundance of caution, we're trying to utilize all the resources we have available to us. >> reporter: friends and family have already prepared themselves for the worst. >> it's going to be rough around here. coming down here, and he's not here, is going to be a real change. >> reporter: these are the filled containters the elderly man lifted onto his truck. the son found his medicine from yesterday. it appears his father did not take it. vallejo police will reassess tomorrow morning whether or not to search the water again. >>> gang violence strikes near a popular holiday destination in the south bay. the family celebrated the holiday, a teen was stabbed. >>